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Continental Drift: Theory & Definition
Continental drift was a theory that explains how the continents were separated and moved to there current position now. The continents were all one super continent and then were split up by plate tectonics. Alfred wegener made the theory in 1912. He was a meteorologist and a geophysicist who thought all the continents were once joined together. Although some of his ideas were wrong, some weren't and they were proved to be true.
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Evidence of Continental Drift
The Continental Drift. The continental Drift is a theory that all the continents were once all one huge landmass called Pangea. Pangea connected all of the continents that are separate today and created one huge super continent. It assembled about 350 million years ago. Then 150 million years ago it was separated and turned into the continents we have now. The theory was made by Alfred Wegener.
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Explainer: Understanding plate tectonics
Plate tectonics is the process whereby Earth continually rebuilds itself. For billions of years the earth has been changing itself on the surface. Plate tectonics are big masses of molten rock that rise deep from inside Earth and then cool into a solid. After they move along the planet’s surface and then sink back down.
sciencenewsforstudents.org -
How Do We Know Plate Tectonics Is Real?
Alfred wegener made a theory called the continental drift because he noticed the same fossils of an animal was found in multiple different continents. He thought that the continents had to be once connected because of the fossils and how the continents also look like they used to fit together. Later Geologists found a strange magnetic force on the bottom sea floor. They found that the earths surface is constantly changing due to plate tectonics.
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